You are correct. If there was such a thing as a clearly superior opening, then everyone would play it!
Prejudice towards openings

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5?? 6. Nxf7!! is a win for white, and that is proved. The more challenging lines are 5...Na4 and 5...Ne4. This deserves no respect if black blunders like this on move 5.
The sicilian is best for black because I play it (just joking).
d4 is more solid because the pawn is defended (again joking).
e4 Nc6 can't be great for black, but I'm not sure of the exact refutation (completely serious).
To be honest, I like the positions arising from the sicilian najdorf, that's why I play it, and same with d4.

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5?? 6. Nxf7!! is a win for white, and that is proved. The more challenging lines are 5...Na4 and 5...Ne4. This deserves no respect if black blunders like this on move 5.
You are completely incorrect. It has been proven that White's attack IS unsound and with best play from Black, BLACK will have a won game.

Yeah, Nxf7 is not sound IMO. But d4 on the other hand is winning. I mean, even if Nxf7 WAS winning, d4 is so much simpler.
+1

There are many people who parrot what they hear about the Ponziani Opening . Such as it is a bad opening because 3. c3 takes away a place where White should place a knight. But look at the Ruy Lopez have you ever seen Nc3 in the Ruy?
Winpedia [or whatever it is called] is chock full of mistakes regarding the Ponziani. I would like to correct those mistakes but do not know how?
Anyone give me a tip on who to make corrections or ask for corrections on Winpedia?

Top right corner of wikipedia you can create an account. Near the top right it will say something like Read I Edit, click edit and make the changes you want. (I think).
The only openings I hate are the ones that feature in troll threads and the ones I consistently lose to (pretty much all of them).
A friend of mine has been making lots of corrections and additions to Wikipedia since he retired. There is quite a community of folk who do that.
I suppose it is good for knowledgeable people with different expertise to pool what they know and make it generally available.
Bit geekish tho'.

Wikipedia struck me as a bit uptight for what is essentially a bunch of people nerding out on their favorite subjects.

Between the opening and the endgame, the gods have placed the middlegame!
(Dr. Tarrasch said something like that)

On Wikipedia, there is indeed quite a bit of "this is winning for white/black" and "this opening is considered bad".
There are many people who parrot what they hear about the Ponziani Opening . Such as it is a bad opening because 3. c3 takes away a place where White should place a knight. But look at the Ruy Lopez have you ever seen Nc3 in the Ruy?
Winpedia [or whatever it is called] is chock full of mistakes regarding the Ponziani. I would like to correct those mistakes but do not know how?
Anyone give me a tip on who to make corrections or ask for corrections on Winpedia?
The Ruy Lopez doesn't allow Black to play ...d5 without making some kind of concession (for example: in the Marshall Attack and Gajewski Variation, Black offers a pawn; in the Open Variation Black has a backward c-pawn). Also, by moving the king bishop around Bf1-b5-a4-b3-c2, White has extracted a concession from Black: the advances ...a6 and ...b5 which weaken the second player's queenside. It's why White so often plays a2-a4.
In the Closed Variations in general, Black has a spatial disadvantage, and White can play on all three parts of the board, or at least two of three.
You may be aware that some people on Chess.com tend to make generalizations about certain openings. Before I go further, here are a few examples:
And et cetera.
It is clear that most chessplayers like some openings better than others, but isn't a win possible from most opening positions? Some people cite a certain line in an opening to back up why it is bad, but usually it's just one line, and there may be others. In my opinion, every opening deserves respect, whatever people think about it.